Transformer and winding.



WlTNESSES: ENTOR C. LE G. EORTESGUE. TRANsFoRMBR AND WINDING. APPLICATION FILED OCT. 8, 1910.

1,129,464. v I Patented Feb.23,191`5.

im Lm z UNiTFD sTATFs PATENT oFFioF..I

CHARLES LE GEYT FORTESCUE, OF PITTSBURGH, PENNSYLVANIA, ASSIGNQR TO WEST- INGHOUSE ELECTRIC AND MNUFACTURING COMPANY. A CORPORATION 0F PENNSYLVANIA.

Specification of Letters Patent.

Patented Feb. 2a, 1915.

Original application leo Augusta, i909, Serial No. 510,854. Divided and this application led October 8,

1910. seriaiN. 586,101.

To all whom it mayponcem:

Be it known that I, CHARLES LE G. Formesopn, a subject of the King of Great Britain, and aI resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Ianprovement in Transformers andv I/Vindings, of which the'following is a specification, this application being a division `of appliation Serial No. 510,854, filed August 2.

particularly to' the windings of high-voltage transformers. L

The object of `my invention is 'to provide such a proportioning and distribution of coils as to maintain substantially the same length of mean turn for all coils and, at the same time, separate the coils from the core member to a greater or less degree, according to their potential. By length of mean A turn, as used herein, I mean the aggregate length of all turns of any coil divided by the total number of turns in the coil.

My invention is particularly applicable to transformers of the, shell type.

In my co-pending application, Serial No.

510,854,iiled August 2, 1909, of which this is a division I have shown and described and claimed broadly a transformer coil arrangement in which the coils are spaced from the core member, to a greater or less degree, according to their potentials. I now desire to lay claim, specifically, vto an adaptation of this general anrangement to transformers of the shell type. l Figure l, of the accompanying drawings, is a front elevationof a shell-type transformer embodying my invention, certain of the parts being broken away to disclose the coils. Fig. 2 is a plan view of the core and windings shown in Fig. l, and Fig. 3 is a diagrammatic viewshowing the circuit connections for the winding of the other figures.

Referring to the drawings, the structure here shown comprises a core 1, low-voltage coils 2 and high-voltage coils 3. The `core coils'are mounted. The high-voltage coils are interposed between the low-voltage coils and are relatively narrow, being, at

My invention relates to transformers and 4ne'cted as to locate the coils of highest voltlthe same time, centrally located, relative `to the adjacent walls of thc core member, so that allthe coils of the transformer have the same length of mean turn and are all concentric. while the high-voltage coils are separated from the core member in all directions andthe low-voltage coils are adjacentt the core member.

I do not wish to be restricted to the/structure and arrangement illustrated since moditlcations may be effected within the spirit and scope of my invention.

I claim as my invention 1. A transformer comprising a core having three substantially parallel legs, spaced low voltage coils, and a plurality of relatively high voltage coils of graded widths having the saine length of nean turn and surrounding the intermediate core leg. y

2. A 'transformer comprising a core having three substantially parallel legs spaced low -voltage coils surrounding the middle core leg and occupying substantially the en-4 tire width of space between the outer and the intermediate core legs and relatively high-voltage coils of unequal width surrounding the intermediate core leg between the low-voltage coils and ,spaced therefrom in the order of their widths and so conage midway between the low-voltage coils, all of said coils having the same length of mean turn.

3. A transformer comprising a core member. and a plurality of side-bv-side coils of di lerent widths, the mean turns of the coils being equal in .length 'and spaced equally from the core member.

Il. A transformer comprising a core. and a plurality of side-by-side coils of different widths connected in a series in which the coils succeed each other in the order of their widths, the mean turns of the coils being equally spaced from the core.

A transformer comprising a core mem-` .00 ber. and av plurality7 of side-b V-side coils of` different widths surrounding the core member and located different distances from the portions of the core member surrounded therebv, the median lines of thecorresponding* sides of the coils lying in substantially the same plane which is parallel to the axes of, the coils.

6. A. transformer comprising'spaced lowvoltage coils and a plurality of side-by-side 110 high-voltage coils of different widths located between the llow Voltage coils, the median lines of the corresponding sides of the several high-voltage coils lying in substantially the same plane.

7. A transformer comprising spaced lowroltage coils and a plurality of side-by-side high-voltage coils of different widths located between the low voltage coils, and connected in ra series in which the coils succeed each other in the order of their widths, the median lines of the corresponding sides of the high-voltage coils lying in substantially the same plane. i

8. A. transformer comprising` a plurality of pairs of spaced low-voltage coils, and cor.- responding sets of high-voltage coils of different widths interposed between the coils of each pair, the median linesv of the corresponding sides of the several high-voltage coils lying in substantially the same plane.

9. A transformer comprising a plurality of pairs of spaced low-voltage coils, and corresponding sets of high-voltage coils of different widths interposed between the low- Voltage coils of each pair, and connected in a series in which the coils succeed each other in the order of their widths, the median lines of the corresponding sides of the several highwoltage coils lying in substantially the Same plane.

10. A transformer comprising a plurality of side-by-side coils of different widths connected in a series in which the coils succeed each other in the order of their Widths, and in which the high voltage coils are located between the low voltage coils.

ll. il transformer comprising a plurality of coils the sides of which vare of diii'erent widths, the coils being connected in a series in which they succeed each other in the order of the widths of their sides, and in .which the coils having narrower sides are located between the coils having wider sides.

l2. 'A transformer comprising a. plurality of pairs of spaced low voltage coils and corresponding sets of high Voltage coils 'of 'different widths interposed between the coils of each low voltage pair and connected in a series in which the coils succeed each other in the order of their widths, and also in which the narrower coils are located between the wider coils.

13. A transformer comprising a plurality of pairs of spaced low voltage coils and corresponding sets of high voltage coils of different widths interposed between the coils of each low voltage pairand connected in a series in which the coils succeed each other in .the order of their widths, and also in which the coils of higher potential are located between those of lower potential.

14. A transformer comprising a plurality of pairs of spaced low voltage coils and corresponding sets of high voltage coils interposed between the aforesaid low Voltage coils of each pair, the high Voltage coils being of different widths andbeing spaced from the low voltage coils in the order of their widths.

15. A transformer comprising a plurality of side-byside coils the sides of which are of dillcrent widths, the coils being connected in a series in which the coils succeed each other in the order ot the Widths of their sides.

16. A transformer comprising a plurality of pairs of coils the sides of which are of dierent widths, the coils being connected in a series in which the pairs of coils succeed each other in the order of the widths of their sides.

17. A transformer comprising a pluralita7 of pairs of coils the sides of which are of di florent widths, the coils being connected in a series in whiclrthe pairs of coils succeed eachother in the order of the widths of their sides. the coils having narrowest sides he ing` disposed adjacent to each other between the coils of the remaining pairs which are similarly located upon opposite sides thereof and arranged in the order of the widths of their sides. v

ln testimony whereof, I have hereunto subscribed my name this 23rd day of Sept., i910.

CHARLES LE GEYT FORTESGUE. lVitnesses:

HELEN BUxToN, B. B. l-TiNns. 

